![]() ![]() ![]() BGFX shaders with bezels in fullscreen can drive GPU usage beyond 75% on the same machine. BGFX without shaders leaves GPU usage clearly below 40% on my iMac. PPS: Some preliminary tests with iStat (unregistered) confirm these findings. Should you have alternative suggestions for testing, I would be happy to learn about them. I tried the very decent XFG App but this software does not recognise my GPU, so I am stuck with the above graphs for the time being. PS: Sorry for just looking into the GPU History of the Activity Monitor. I will try to further dig into this very interesting topic, simply because you can read so differently all over the Internet about MAME requirements. So does it sense to purchase a new Mac mini if you are into enhanced MAME gaming? Probably not, unless you want to invest into an external GPU as well. And arcade games only make fun if you apply shaders and artwork. What I get from this as a preliminary conclusion: Shaders and bezels desperately need GPU power. Tests on a Mac mini (Mid 2011, 2,7 GHz i7, AMD Radeon HD 6630M 256 MB) go in a similar direction (unfortunately the GPU graph of the Activity Monitor does not work):ħ41,07% - without artwork and without shaderĤ12,74% - BGFX/Metal* without dedicated shaderĢ53,51% - BGFX/Metal* with CRT-GEOM Deluxe Tests on my MacBook Pro 13'' Mid 2012 with Intel HD4000 integrated GPU (GPU History according to Activity Monitor) Tests on my iMac Late 2013 with NVIDIA Geforce GTX 780M While MAME standalone relies on the CPU, the GPU (literally) becomes the game changer as soon as you add artwork and/or shaders. My first tests are very preliminary, however give a very clear picture. After some dedicated testing, this might be the answer: I was always sceptical about this statement, simply because I had different experience on Mac minis and Mac Laptops with integrated GPU. You can read quite frequently that MAME solely depends on a good CPU, whereas GPU performance is irrelevant. How important is the GPU of your Mac for MAME performance? Which brought me to a long-standing question: I immediately noted the quite significant performance in Gyruss and Offroad Challenge. ![]()
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